23210411421 has 4 divisors (see below), whose sum is σ = 30947215232. Its totient is φ = 15473607612.

The previous prime is 23210411369. The next prime is 23210411479. The reversal of 23210411421 is 12411401232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23210411421 - 2⁷ = 23210411293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210411221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3868401901 + ... + 3868401906.

It is an arithmetic number, because the mean of its divisors is an integer number (7736803808).

Almost surely, 2^23210411421 is an apocalyptic number.

It is an amenable number.

23210411421 is a deficient number, since it is larger than the sum of its proper divisors (7736803811).

23210411421 is an equidigital number, since it uses as much as digits as its factorization.

23210411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736803810.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 23210411421 its reverse (12411401232), we get a palindrome (35621812653).

The spelling of 23210411421 in words is "twenty-three billion, two hundred ten million, four hundred eleven thousand, four hundred twenty-one".